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National Register

National Park Service

National Register of Historic Places Program

The National Register of Historic Places is the official list of the Nation's historic places worthy of preservation. Authorized by the National Historic Preservation Act of 1966, the National Park Service's National Register of Historic Places is part of a national program to coordinate and support public and private efforts to identify, evaluate, and protect America's historic and archeological resources.

The Penn-Liberty Historic District (Boundary Increase) is eligible for the National Register of Historic Places under Criterion A for Commerce and under Criterion C for Architecture. Under Criterion A for Commerce, the boundary increase is in keeping with the overall commercial significance that characterizes the previously-listed district. Under Criterion C for Architecture, the boundary increase is in keeping with the architectural character and quality of the previously-listed district. The period of significance is 1870-1930, in keeping with that of the previously-listed district.

Properties are listed in the National Register of Historic Places under four criteria: A, B, C, and D. For information on what these criterion are and how they are applied, please see our Bulletin on How to Apply the National Register Criteria